The Everbilt Pre-Plumbed Sump Basin System is ideal for basement installations, pumping below grade drainage and grey water. The system collects and pumps wastewater to a sewer or an on-site wastewater system. The system comes pre-plumbed and ready to install; no internal plumbing is required. The system features an injection molded structural foam polyethylene basin and cover that provides superior structural toughness and reliability. It includes the Everbilt Model HDS30, 3/10 HP Cast Iron Sump Pump. This Pre-Plumbed System also includes the Everbilt Inline Sump Check Valve and a water-tight molded 4 in. Features an 18 in. Heavy duty sump basin with a water-tight snap-in molded inlet hub. Comes with the Everbilt HDS30 3/10 HP cast iron sump pump. Heavy duty structural foam injection molded basin cover features a clear view removable inspection plate, the Sump DrainTrap cover drain, 1-1/2 in. Threaded discharge flange, 2 in. Threaded vent flange, molded reusable PVC cover seal and 8-bolts for a gas and odor tight seal. System pumps up to 3,160 GPH. Ultra-quiet Everbilt inline sump pump check valve. Submersible, Thermal Overload Protection. Maximum Working Temperature (F). Minimum Sump Basin Diameter. Minimum working temperature (F). Outlet Diameter Connection in.